JP7307783B2 - Body support and sleeping device - Google Patents

Description

The present invention relates to a body support apparatus and a couch apparatus.

For example, Patent Document 1 is known as a body support device.

JP 2017-18591 A

The present invention provides a body support device that can be simplified in structure.

A body support device according to an aspect of the present invention includes a support base, a main frame that supports the support base, and a drive unit that operates at least one of movement of the support base and inclination of the main frame. there is It operates in one of a mode in which the driving section moves the support base while tilting the main frame, and a mode in which the driving section moves only one of the movement of the support base and the tilting of the main frame.

ADVANTAGE OF THE INVENTION According to this invention, the body support apparatus which can simplify a structure can be provided.

1 is a perspective view of a body support apparatus according to one embodiment of the invention; FIG. Fig. 2 is a side view of the body support apparatus shown in Fig. 1, showing a state in which the support platform is lowered to the maximum; 2 is a top view of the body support apparatus shown in FIG. 1; FIG. Figure 2 is a bottom view of the body support apparatus shown in Figure 1; It is the figure which expanded the A section in the bottom view shown in FIG. FIG. 3 is a side view showing a state in which the support base is raised to the maximum in the body support device shown in FIG. 2; It is a figure which shows the state which partially penetrate|transmitted while enlarging the B section in the side view shown in FIG. 2 is a perspective view showing a state in which the support base is raised to the maximum and the back bottom and leg bottoms are moved in the body support apparatus shown in FIG. 1. FIG. FIG. 9 is a perspective view showing a state in which the back bottom and leg bottoms are removed from the state shown in FIG. 8; FIG. 7 is a side view showing a state in which the drive section is operated in the first mode in the body support device shown in FIG. 6; It is a figure which shows the state which partially penetrate|transmitted while enlarging the C section in the side view shown in FIG. FIG. 7 is a side view showing a state in which the drive section is operated in the second mode in the body support device shown in FIG. 6; It is a figure which shows the state which partially penetrate|transmitted while enlarging the D section in the side view shown in FIG. It is a figure which shows an example of the input part with which the body support apparatus shown in FIG. 1 is equipped. FIG. 10 is a view of a main part of a pedestal extracted from the perspective view shown in FIG. 9; It is a figure which shows the body support apparatus based on the modification of this invention, Comprising: It is a perspective view which shows a part of back raising mechanism. FIG. 17 is a view corresponding to the state shown in FIG. 13 in the body support device according to the modification shown in FIG. 16;

A body support device 10 according to one embodiment of the present invention will be described below with reference to the drawings.
The body support device 10 of the present embodiment shown in FIG. 1 is a bed device (bed) that can be used as a general floor bed, an ICU bed, or the like, for example, in a medical environment (including a nursing care environment). is installed in In each figure including FIG. 1, the symbol X indicates the first direction X along the longitudinal direction of the body support device 10, the symbol Y indicates the second direction Y along the width direction of the body support device 10, The Z direction indicates the third direction Z along the height direction (vertical direction) of the body support device 10 .
When the body support device 10 is viewed in plan along the third direction Z, the body support device 10 is shorter in the second direction Y orthogonal to the first direction X than in the first direction X. The first direction X is the height direction of the user lying on the body support apparatus 10 .

[Schematic Configuration of Body Support Device 10]
First, a schematic configuration of the body support device 10 will be described.
As shown in FIG. 1, the body support device 10 includes a support base 11 that supports a user (not shown), a base 12 that supports the support base 11, and a control unit that controls movements of the support base 11 and the base 12. 17 and. The body support device 10 is an electric bed that operates using electric power as a power source.

<Support base 11>
The support base 11 will be described with reference to FIGS. 1 to 3. FIG.
The support base 11 includes a back bottom (Back section) 21 , a waist bottom (Seat section) 22 and a leg bottom (Leg section) 23 . These back bottom 21, waist bottom 22 and leg bottom 23 are arranged in the first direction X in this order. The back bottom 21 supports the back of the user. The waist bottom 22 supports the waist of the user. The leg bottoms 23 support the legs of the user.

The leg bottom 23 includes a knee bottom (upper leg section) 24 and a leg bottom (lower leg section) 25 . These knee bottoms 24 and leg bottoms 25 are arranged along the first direction X in this order. The knee bottom 24 supports the user's knees and hips. The leg bottom 25 supports the user's knees and toes.
A mattress (not shown) on which the user lies is placed on the support base 11 . That is, the mattress is placed on the support base 11 of the body support device 10, and the user lies on the mattress.

<Frame 12>
The mount 12 will be described with reference to FIGS. 1, 2, and 4 to 13. FIG.
As shown in FIG. 7 , the gantry 12 includes a main frame 32 that supports the support 11 , a base frame 31 positioned below the main frame 32 , and an elevating mechanism 33 that elevates the main frame 32 with respect to the base frame 31 . , a back lifting mechanism 39 for moving the back bottom 21, and a knee lifting mechanism 45 for moving the leg bottom 23.

(Base frame 31)
Based on FIG. 6, the base frame 31 will be described.
The base frame 31 is provided with casters 36 , caster locks 91 that restrict the rotation of the casters 36 , and stoppers 92 projecting downward from the base frame 31 . The casters 36 are arranged at four corner positions when the base frame 31 is viewed from above. The casters 36 are grounded on the floor FL.

The caster locks 91 protrude outward along the first direction X from the base frame 31 . Caster locks 91 are arranged below leg bottoms 25 . The caster locks 91 are operated, for example, by the feet of a carrier (not shown) of the body support apparatus 10 . In this embodiment, when the transporter steps on the caster locks 91 from above and the caster locks 91 descend, the rotation of the casters 36 is restricted. Conversely, when the transporter pulls up the caster lock 91 with his or her foot, the restriction on the rotation of the casters 36 is released.

The stoppers 92 restrict access to the caster locks 91 when legs of not-shown options (for example, desks, nursing care lifts, etc.) enter below the base frame 31 . The stopper 92 is arranged between the center portion of the base frame 31 in the first direction X and the caster lock 91 .

(lifting mechanism 33)
The lifting mechanism 33 will be described with reference to FIGS. 7, 9 and 15. FIG.
As shown in FIG. 7, the lifting mechanism 33 employs a so-called X-link structure. For the elevating mechanism 33, for example, a link-type elevating mechanism described in Japanese Patent Application No. 2016-009816 (title of the invention: connecting frame and bed apparatus including the same, filing date: January 21, 2016) can be used. This patent application is incorporated by reference in its entirety. The elevating mechanism 33 includes a first link 51 and a second link 52 arranged to intersect each other, a pin 54 connecting central portions of the first link 51 and the second link 52, and a first link 51 and a second link 52. A plate member 58 provided at an end portion of the link 52 and a driving portion 61 for moving the first link 51 and the second link 52 are provided.
In this embodiment, the lifting mechanism 33 employs an X-link structure using an actuator, but is not limited to this case. It may be composed only of a link mechanism that does not use

The first link 51 and the second link 52 are rod-shaped and extend along the first direction X when viewed from above. One end 51 a of the first link 51 and one end 52 a of the second link 52 are positioned below the waist bottom 22 . The other end 51 b of the first link 51 and the other end 52 b of the second link 52 are positioned below the leg bottom 23 .
At least one of the first link 51 and the second link 52 (both in this embodiment) is bent when viewed from the side. Specifically, the first link 51 is bent upward. On the other hand, the second link 52 is bent downward.

As shown in FIG. 9, a pair of the first link 51 and the second link 52 are provided with a gap in the second direction Y, respectively. In this embodiment, a pair of a first link 51 and a second link 52 connected by a pin 54 are provided in the second direction Y at intervals. The pair of first links 51 and the pair of second links 52 are respectively connected by pipes 53 .

The pipes 53 include a first pipe 531 that connects one end portions 51a of the pair of first links 51, a second pipe 532 that connects the other end portions 51b of the pair of first links 51, and a pair of second links. A third pipe 533 connecting the ends 52a of the link 52 and a fourth pipe 534 connecting the ends 52b of the pair of second links 52 are provided.

As shown in FIG. 15, the plate member 58 includes a first plate member 581 fixed to the first pipe 531, a second plate member 582 fixed to the second pipe 532, and a third plate member fixed to the third pipe 533. 583 and .
The first plate member 581 is connected to the base frame 31 . The first plate member 581 can rotate with respect to the base frame 31 .

The second plate member 582 is provided with the first roller 55a. The first roller 55 a is supported by a first channel material 55 fixed to the main frame 32 . The first channel material 55 extends along the first direction X. As shown in FIG. The first roller 55 a slides in the first direction X along the first channel material 55 .

The third plate member 583 is connected to the main frame 32 . The third plate member 583 can rotate with respect to the main frame 32 .
The fourth pipe 534 is provided with a second roller 56a. The second roller 56 a is supported by a second channel material 56 fixed to the base frame 31 . The second channel material 56 extends along the first direction X. As shown in FIG. The second roller 56 a slides in the first direction X along the second channel material 56 .

As shown in FIG. 7, the drive unit 61 is a linear actuator that expands and contracts along the first direction X when viewed from above. The driving portion 61 expands to rotate the first link 51 upward about the first plate member 581 . The first link 51 is provided with a link mechanism 65 that converts the telescopic motion of the driving portion 61 into the rotational motion of the first link 51 . As shown in FIG. 4 , the driving portion 61 is connected to each of the link mechanism 65 and the second pipe 532 .

In the lifting mechanism 33, when the main frame 32 is lifted with respect to the base frame 31, the driving portion 61 extends as shown in FIG. Then, the first link 51 rotates upward around the first plate member 581 , and the first roller 55 a slides along the first channel member 55 . At this time, the second link 52 rotates downward around the third plate member 583 , and the second roller 56 a slides along the second channel member 56 . As a result, the main frame 32 rises with respect to the base frame 31 .

(Back raising mechanism 39)
The back lifting mechanism 39 will be described with reference to FIGS. 9 to 11. FIG.
As shown in FIG. 10 , the back lifting mechanism 39 tilts the back bottom 21 . As shown in FIG. 11, the back lifting mechanism 39 includes a shaft member 26a connected to the main frame 32, a first member 43 fixed to the shaft member 26a, and a second member fixed to the lower surface of the back bottom 21. 40, a first link 44 that connects the main frame 32 and the second member 40, a second link 42 that connects the first member 43 and the second member 40, and a driving portion 63 that rotates the shaft member 26a. , is equipped with

As shown in FIG. 9, the shaft member 26a extends in the second direction Y. As shown in FIG. The shaft member 26 a rotates while being connected to the main frame 32 .
The first member 43 extends in the first direction X from the shaft member 26a before the back is raised (before the back bottom 21 is inclined) as shown in FIG. As shown in FIG. 9, one end 43a of the first member 43 is fixed to the shaft member 26a. As shown in FIG. 10, the other end portion 43b of the first member 43 is provided with a roller 43c. The roller 43c contacts the bottom surface of the second member 40 .

The first link 44 is connected to each of the main frame 32 and the second member 40 by a pin 44a. As shown in FIG. 11, the second link 42 is connected to each of the first member 43 and the second member 40 by pins 42a. The first link 44 , the second link 42 and the second member 40 form a link mechanism 41 .

As shown in FIG. 9, the drive unit 63 is a linear actuator that expands and contracts in the first direction X when viewed from above. The driving portion 63 rotates the shaft member 26a by extending. The driving portion 63 is connected to a first bracket 63a provided on the main frame 32 and a second bracket 63b provided on the shaft member 26a. The driving portion 63 is connected to each of the first bracket 63a and the second bracket 63b by a pin 63c.

In the back raising mechanism 39, before the back is raised, the driving portion 63 is extended, the shaft member 26a is rotated, and the other end portion 43b of the first member 43 is raised. slides on the lower surface of the second member 40 and the first member 43 pushes up the second member 40 . At this time, as shown in FIG. 11, the movement of the link mechanism 41 causes the back bottom 21 to rise and fall around the shaft member 26a while the entire back bottom 21 moves in the first direction X. As shown in FIG. As a result, the back bottom 21 is in a raised state in which the back bottom 21 is inclined with respect to the horizontal plane.

(Knee raising mechanism 45)
The knee raising mechanism 45 will be described with reference to FIGS. 6 and 7. FIG.
The knee raising mechanism 45 can move the leg bottom 23 as indicated by the chain double-dashed line in FIG. As shown in FIG. 7, the knee raising mechanism 45 includes a shaft member 26b connected to the main frame 32, a first member 46 fixed to the shaft member 26b, and a second member fixed to the lower surface of the knee bottom 24. 47, a third member 48 fixed to the lower surface of the leg bottom 25, and a driving portion 64 that rotates the shaft member 26b.

The shaft member 26b extends in the second direction Y. As shown in FIG. The shaft member 26 b rotates while being connected to the main frame 32 .
The first member 46 extends in the first direction X from the shaft member 26b before the knee is raised (before the leg bottom 23 is moved). One end 46a of the first member 46 is fixed to the shaft member 26b. A roller 46c is provided at the other end portion 46b of the first member 46 . The roller 46 c contacts the lower surface of the second member 47 .

The second member 47 extends in the first direction X before raising the knee. One end 47a of the second member 47 is connected to the main frame 32 by a first pin 49a.
The third member 48 extends in the first direction X from the other end 47b of the second member 47 before raising the knee. One end 48a of the third member 48 is connected to the other end 47b of the second member 47 by a second pin 49b.

The drive unit 64 is a linear motion actuator that expands and contracts in the first direction X when viewed from above. The driving portion 64 rotates the shaft member 26b by extending. The driving portion 64 is connected to a first bracket 64a provided on the main frame 32 and a second bracket 64b provided on the shaft member 26b. The driving portion 64 is connected to each of the first bracket 64a and the second bracket 64b by a pin 64c.

In the knee-raising mechanism 45, the driving portion 64 extends before the knee-raising state, the shaft member 26b rotates, and the other end portion 46b of the first member 46 rises. , and the first member 46 pushes up the second member 47 . At this time, the second member 47 rotates upward around the first pin 49a, and the third member 48 rotates downward around the second pin 49b. As a result, as shown by the two-dot chain line in FIG. 6 , the entire leg bottom 23 is bent upward, resulting in a knee-raised state.

<Control unit 17>
As shown in FIG. 9, the controller 17 is positioned below the support base 11 and fixed to the main frame 32 . The control unit 17 controls each drive unit 61 , 63 , 64 . An input unit 18 shown in FIG. 14 is wired or wirelessly connected to the control unit 17 . A user or a caregiver inputs a command regarding the operation of the body support device 10 to the input unit 18 . The input unit 18 has a plurality of manipulators 81 . The plurality of manipulators 81 includes a first manipulator 82 , a second manipulator 83 , a third manipulator 84 , and a fourth manipulator 85 .

When each manipulator 81 is operated, the input unit 18 sends a signal to the control unit 17 as to which manipulator 81 has been operated. When the control unit 17 receives a signal that the first manipulator 82 is operated from the input unit 18, the control unit 17 controls both the driving unit 63 of the back raising mechanism 39 and the driving unit 64 of the knee raising mechanism 45. is generated and sent to the driving units 63 and 64. When the control unit 17 receives a signal indicating that the second operator 83 has been operated from the input unit 18 , the control unit 17 generates a signal for controlling the drive unit 63 of the back raising mechanism 39 and sends the signal to the drive unit 63 . . When the control unit 17 receives a signal from the input unit 18 that the third operator 84 is operated, the control unit 17 generates a signal for controlling the driving unit 64 of the knee raising mechanism 45 and sends the signal to the driving unit 64 . . When the control unit 17 receives a signal indicating that the fourth operator 85 is operated from the input unit 18 , the control unit 17 generates a signal for controlling the driving unit 61 of the lifting mechanism 33 and sends the signal to the driving unit 61 .

[Motion Mode of Body Support Device 10]
Modes of movement of the body-support apparatus 10 will now be described with reference to FIGS. 10-13 and 15. FIG.
The driving portion 63 of the back raising mechanism 39 can move the back bottom 21 while tilting the main frame 32 as shown in FIG. 12, as well as moving the back bottom 21 as shown in FIG. The body support apparatus 10 has a first mode in which the drive unit 63 moves only one of the support table 11 and the main frame 32 as shown in FIG. 11 moves with the main frame 32.

As shown in FIGS. 11 and 13, the body support apparatus 10 further comprises pins 71. As shown in FIGS. The pin 71 can be attached at multiple locations on the body support apparatus 10 . The position where the pins 71 are attached when the body-support apparatus 10 is operated in the first mode as shown in FIG. It is different from the position where 71 is mounted. As shown in FIG. 11, when the body support device 10 operates in the first mode, the pin 71 connects the main frame 32 and the lifting mechanism 33, and when the driving portion 63 extends, the shaft member 26a simply rotate. On the other hand, as shown in FIG. 13, when the body support apparatus 10 operates in the second mode, the pin 71 connects the lifting mechanism 33 and the back lifting mechanism 39, and when the driving portion 63 extends, the shaft member As 26a rotates, the entire back raising mechanism 39 rotates upward around the pin 71. As shown in FIG. Note that the control of the drive unit 63 by the control unit 17 is also different. Details on this point will be described later.
The first mode and the second mode will be described below.

<First mode>
First, the first mode will be described with reference to FIGS. 10, 11 and 15. FIG.
As shown in FIG. 10, in the first mode, the driving section 63 moves only the support base 11, for example. In the first mode, the pin 71 is attached to the main frame 32 and the lifting mechanism 33 as shown in FIG.
As shown in FIG. 15, the main frame 32 is formed with a first through hole 72 penetrating in the second direction Y. As shown in FIG. A second through hole 73 penetrating in the second direction Y is formed in the lifting mechanism 33 (the third plate member 583). The first through hole 72 and the second through hole 73 are arranged coaxially with each other when the support table 11 is in the lowest position, and as shown in FIG. It is attached to hole 73 .

When the body support device 10 is in the first mode and the driving portion 63 extends, the shaft member 26a rotates and the other end portion 43b of the first member 43 rises. As a result, the back bottom 21 is tilted without tilting the main frame 32, as shown in FIG.

<Second mode>
Next, the second mode will be explained using FIGS. 11 to 13 and 15. FIG.
As shown in FIG. 12 , in the second mode, the driving section 63 tilts the main frame 32 with respect to the floor FL while tilting the back bottom 21 with respect to the main frame 32 . In this case, one driving section 63 operates both the back bottom 21 and the main frame 32 . In the second mode, as shown in FIG. 13, the pin 71 is attached to the first plate member 74 provided on the back lifting mechanism 39 and the second plate member 75 provided on the lifting mechanism 33 .

The first plate member 74 protrudes in the first direction X from the shaft member 26a. As shown in FIG. 11, a third through-hole 76 is formed through the first plate member 74 in the second direction Y. As shown in FIG. As shown in FIG. 15, the second plate member 75 protrudes in the first direction X from the third pipe 533. As shown in FIG. A fourth through hole 77 penetrating in the second direction Y is formed in the second plate member 75 . The third through hole 76 and the fourth through hole 77 are arranged coaxially with each other when the support table 11 is in the lowest position, and as shown in FIG. It is attached to hole 77 .

When the body support device 10 is in the second mode and the driving portion 63 extends, the shaft member 26a rotates and the other end portion 43b of the first member 43 rises while the driving portion 63 moves upward around the pin 71. Rotate. As a result, as shown in FIG. 12, the portion of the main frame 32 located below the back bottom 21 rises. At this time, the first channel member 55 of the main frame 32 slides in the first direction X with respect to the first roller 55a of the lifting mechanism 33, as indicated by the dotted line in FIG. As a result, the portion of the main frame 32 located below the leg bottom 23 descends, and the main frame 32 as a whole inclines.

In the second mode, even if the detection signal acquired by the control section 17 from the input section 18 is the same as in the first mode, the control of the driving section 63 by the control section 17 is different. In the case of the second mode, since the main frame 32 is tilted by driving the drive unit 63, even if the tilt of the back bottom 21 is small, the position of the line of sight of the user on the support base 11 is sufficiently high. . Therefore, for example, the final tilt amount of the drive unit 63 in the second mode is smaller than the tilt amount in the first mode. This control change can be implemented by the user operating the input unit 18 to rewrite the information in the control unit 17 .

[Height of Lifting Mechanism 33]
Finally, the height of the lifting mechanism 33 will be described with reference to FIGS. 2 and 6. FIG.
As shown in FIG. 2, the height of the lower end of the lifting mechanism 33 relative to the floor surface FL (hereinafter referred to as "the height of the lower end of the lifting mechanism 33") is the height of the lower end of the base frame 31 relative to the floor surface FL ( Hereinafter, it is referred to as "the height of the lower end of the base frame 31"). In the present embodiment, although the form of the lifting mechanism 33 changes depending on the height at which the lifting mechanism 33 raises and lowers the support base 11, the height of the lower end of the lifting mechanism 33 is the height of the lower end of the base frame 31 regardless of the form. height or higher. Specifically, as shown in FIG. 2, the state where the lifting mechanism 33 lowers the support table 11 to the maximum is changed to the state in which the lifting mechanism 33 raises the support table 11 to the maximum as shown in FIG. In either state, the height of the lower end of the lifting mechanism 33 is equal to or higher than the height of the lower end of the base frame 31 .

A distance H1 in the third direction Z between the lower end of the base frame 31 and the floor FL is, for example, 66 mm to 76 mm. Further, as shown in FIG. 2, when the support base 11 is at its lowest point, the distance H2 in the third direction Z from the upper surface of the support base 11 (the support surface that supports the user) to the floor surface FL is For example, it is 215 mm to 225 mm.

[Summary of this embodiment]
Technical ideas that can be grasped from the above embodiments will be described together with effects.
As shown in FIGS. 2 and 6, the body support device 10 according to the present embodiment includes a base frame 31 provided on a floor surface FL (installation surface), a support table 11 positioned above the base frame 31, a base and an elevating mechanism 33 for elevating the support base 11 with respect to the frame 31 . The height of the lower end of the lifting mechanism 33 is equal to or higher than the height of the lower end of the base frame 31 .
In this case, for example, the legs of options (eg, a desk, a care lift, etc.), which are not shown, can be smoothly inserted under the base frame 31, and the convenience of the body support device 10 can be improved. In this embodiment, as shown in FIG. 2 , the height of the lower end of the lifting mechanism 33 is equal to or higher than the height of the lower end of the base frame 31 even when the lifting mechanism 33 lowers the support base 11 to the maximum. Therefore, the option can be used without raising the support base 11 . Furthermore, in the present embodiment, the lower end of the lifting mechanism 33 is maintained in any state from the state in which the lifting mechanism 33 lowers the support table 11 to the maximum state to the state in which the support base 11 is raised to the maximum as shown in FIG. The height is equal to or higher than the height of the lower end of the base frame 31 . Therefore, the support base 11 can be raised and lowered while using the option.

As shown in FIG. 7, the lifting mechanism 33 includes a first link 51, a second link 52, and a pin 54 connecting central portions of the first link 51 and the second link 52 to each other.
The lifting mechanism 33 further includes a first plate member 581 (plate member 58 ) that is connected to the base frame 31 and rotates with respect to the base frame 31 . A first plate member 581 is fixed to the first link 51 .
In this case, the first link 51 can be rotated around the first plate member 581 with respect to the base frame 31 without connecting the first link 51 to the base frame 31 . Therefore, instead of connecting the first link 51 to the base frame 31 , the first plate member 581 may be connected to the base frame 31 . As a result, for example, the body support device 10 can be easily assembled.

At least one of the first link 51 and the second link 52 (both in this embodiment) is bent.
In this case, by bending the first link 51 and the second link 52, for example, interference between the first link 51 and the second link 52 and other members can be suppressed.

As shown in FIGS. 12 and 13, the body support device 10 according to the present embodiment includes a support base 11, a main frame 32 supporting the support base 11, and at least movement of the support base 11 and inclination of the main frame 32. and a driving portion 63 (the driving portion 63 of the back lifting mechanism 39 in this embodiment) that operates one side. As shown in FIGS. 12 and 13, the body support device 10 operates in a mode (second mode in this embodiment) in which the drive unit 63 moves the support base 11 while tilting the main frame 32, and in a mode shown in FIGS. As indicated by 11, the drive unit 63 operates in one mode (first mode in this embodiment) in which only one of the movement of the support table 11 and the tilting of the main frame 32 is performed.
In this case, a common drive source can be used to move the support base 11 and the main frame 32 . As a result, it is possible to simplify the structure, reduce the cost, and shorten the time required to move the support base 11 and the main frame 32 .

As shown in FIGS. 11 and 13, the body support device 10 further includes members (pins 71 in this embodiment) whose positions are different for each mode.
In this case, the convenience of the body support device 10 can be improved.

[Modification]
It should be noted that the technical scope of the present invention is not limited to the configurations of the above embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, like the body support device 10A according to the modification shown in FIGS. 16 and 17, when the body support device 10A is set to the second mode, as shown in FIG. It may be attached to the link member 78 . As shown in FIG. 16, the link member 78 is attached to the shaft member 26a and rotates with respect to the shaft member 26a. A fifth through-hole 78a and a sixth through-hole 78b penetrating in the second direction Y are formed in the link member 78 . As shown in FIG. 17, a pin 79 (another pin 79 different from the pin 71) inserted through the fourth through hole 77 is inserted through the sixth through hole 78b. As shown in FIG. 16, when the pin 71 is inserted through the fifth through-hole 78a and the third through-hole 76, the link member 78 also rotates when the shaft member 26a rotates. If the pin 71 is not inserted through the fifth through hole 78a and the third through hole 76, the link member 78 will not rotate when the shaft member 26a rotates.

In the above embodiment, as shown in FIGS. 6 and 10, both the back bottom 21 and the leg bottoms 23 move and the main frame 32 moves up and down and tilts, but the present invention is not limited to this. For example, the main frame 32 does not have to move up and down. Only one of the back bottom 21 or the leg bottom 23 may move.

The present invention can be applied not only to beds (beds) but also to stretchers and chairs.
In the above embodiment, as shown by the two-dot chain line in FIG. 6, when the leg bottom 23 moves, both the knee bottom 24 and the leg bottom 25 move, and the entire leg bottom 23 projects upward. Although the state is raised, the present invention is not limited to this. For example, of the leg bottoms 23, the knee bottoms 24 may not move, and only the leg bottoms 25 may be rotated downward to put the feet down.

In the above embodiment, as shown in FIGS. 10 to 13, the body support device 10 operates in multiple modes, but the invention is not limited to this. For example, the body support apparatus 10 may have only one function of the first mode and the second mode, and the pins 71 may be omitted. Further, for example, when the body support apparatus 10 is in the second mode, instead of the driving section 63 of the back lifting mechanism 39 moving the support base 11 together with the main frame 32, the driving section 64 of the knee lifting mechanism 45 moves the support base 11. may be moved together with the main frame 32 . In this case, for example, a configuration can be adopted in which the leg bottoms 23 are moved to raise the knees or lower the feet while the main frame 32 is inclined.

The lifting mechanism 33 may not have the plate member 58 . The first link 51 and the second link 42 of the lifting mechanism 33 do not have to be bent. The lifting mechanism 33 may not have the X-link structure. The height of the lower end of the lifting mechanism 33 does not have to be equal to or higher than the height of the lower end of the base frame 31 .

In addition, the constituent elements in the above embodiments may be appropriately replaced with well-known constituent elements, and the modifications described above may be combined as appropriate without departing from the gist of the present invention.

10, 10A Body support device 11 Support stand 26a Shaft member 31 Base frame 32 Main frame 33 Lifting mechanism 51 First link 52 Second link 58 Plate member 59 Bending portion 63 Driving portion

Claims (3)

mainframe and
a base frame positioned below the main frame;
an elevating mechanism for elevating the main frame with respect to the base frame;
A body support apparatus comprising:
The elevating mechanism has a first link and a second link that are arranged to cross each other and are rotatably connected at their central portions,
a shaft member connected to the main frame;
a drive unit that rotates the shaft member,
The drive unit is connected to a first bracket provided on the main frame and a second bracket provided on the shaft member,
The second link has a plate member at one end that rotates with respect to the main frame,
the other end of the second link slides along a channel material provided in the base frame;
A body support apparatus, wherein when the drive section extends, the shaft member rotates and the main frame as a whole tilts. 2. A body support apparatus according to claim 1, wherein said driving portion is a linear actuator. a support base supported by the main frame;
a body support device according to claim 1 or 2;
A bed device comprising:

Images